deps: update dependency org.threeten:threetenbp to v1.7.0 (#3205)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [org.threeten:threetenbp](https://www.threeten.org/threetenbp)
([source](https://redirect.github.com/ThreeTen/threetenbp)) | `1.6.9` ->
`1.7.0` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/org.threeten:threetenbp/1.7.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/org.threeten:threetenbp/1.7.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/org.threeten:threetenbp/1.6.9/1.7.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/org.threeten:threetenbp/1.6.9/1.7.0?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

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---

### Release Notes

<details>
<summary>ThreeTen/threetenbp (org.threeten:threetenbp)</summary>

###
[`v1.7.0`](https://redirect.github.com/ThreeTen/threetenbp/releases/tag/v1.7.0)

[Compare
Source](https://redirect.github.com/ThreeTen/threetenbp/compare/v1.6.9...v1.7.0)

See the [change
notes](https://www.threeten.org/threetenbp/changes-report.html) for more
information.

</details>

---

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---

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---

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gapic-generator-java-pom-parent/pom.xml

@@ -36,7 +36,7 @@
     <maven.compiler.release>8</maven.compiler.release>
     <errorprone.version>2.32.0</errorprone.version>
     <j2objc-annotations.version>3.0.0</j2objc-annotations.version>
-    <threetenbp.version>1.6.9</threetenbp.version>
+    <threetenbp.version>1.7.0</threetenbp.version>
     <junit.version>5.11.0</junit.version>
   </properties>